As with any regulator, increasing the size of the output capacitor reduces overshoot and undershoot magnitude but increase duration of the transient response. In the adjustable version, adding C_FB between OUT and FB improves stability and transient response. The transient response of the TPS799-Q1 is enhanced by an active pulldown that engages when the output overshoots by approximately 5% or more when the device is enabled. When enabled, the pulldown device behaves like a 350-Ω resistor to ground.